Dragon vs GM Nakamura Analog Handicap Match

[lkaufman]

Dragon vs. my son Ray was drawn 2 to 2 at knight odds, same tc as the Naka match. So if the difference in the odds offsets the strength difference between Naka and Ray, the Dragon vs Naka match should be close. It should be noted that standard Dragon lost 1.5 to 0.5 to Ray, while MCTS Dragon won by 1.5 to 0.5. Of course that's not a statistically significant difference, just a hint that it's okay to use MCTS for at least some games.

[Laskos]

Dragon vs. my son Ray was drawn 2 to 2 at knight odds, same tc as the Naka match. So if the difference in the odds offsets the strength difference between Naka and Ray, the Dragon vs Naka match should be close. It should be noted that standard Dragon lost 1.5 to 0.5 to Ray, while MCTS Dragon won by 1.5 to 0.5. Of course that's not a statistically significant difference, just a hint that it's okay to use MCTS for at least some games.

Knight odds are trickier to simulate due to importance of some opening lines. With a naive opening set and hardly a use of the human opening advantage, I got +4 -1 =3 for Dragon against Lc0 (human). Anyway, all this is highly speculative, as is the prediction for Naka match.

[mwyoung]

Dragon vs. my son Ray was drawn 2 to 2 at knight odds, same tc as the Naka match. So if the difference in the odds offsets the strength difference between Naka and Ray, the Dragon vs Naka match should be close. It should be noted that standard Dragon lost 1.5 to 0.5 to Ray, while MCTS Dragon won by 1.5 to 0.5. Of course that's not a statistically significant difference, just a hint that it's okay to use MCTS for at least some games.

Knight odds are trickier to simulate due to importance of some opening lines. With a naive opening set and hardly a use of the human opening advantage, I got +4 -1 =3 for Dragon against Lc0 (human). Anyway, all this is highly speculative, as is the prediction for Naka match.

You are correct. Nakamura knows the positions, and knows the program. And this gives Nakamura the advantage of prepping the opening.

[Chessqueen]

Humans know that when they are ahead all they need to do is force to trade pieces, whereas Programs do NOT;

You are wrong. And btw. Why do you SHOUT?

Sorry it is easier for me to read, but If I am wrong please let me know a program that once it is ahead, immediately start trading pieces down, now I am whispering into your ear shhhhhhhh, let me know if I am talking too softly now ?

[lkaufman]

Humans know that when they are ahead all they need to do is force to trade pieces, whereas Programs do NOT;

You are wrong. And btw. Why do you SHOUT?

Sorry it is easier for me to read, but If I am wrong please let me know a program that once it is ahead, immediately start trading pieces down, now I am whispering into your ear shhhhhhhh, let me know if I am talking too softly now ?

Most modern programs know that it is in general advisable to trade pieces, especially major pieces, when ahead in material. They just differ in terms of how strongly they want to do this. For example, if you are up a knight, is it worth a pawn to trade queens? Hard to say in general, I think most engines would say "no", other things being equal, but if they were up a rook they would gladly take that deal. Personally I think that Stockfish is a bit weaker than other top engines in this area, that's why it's not so good at giving handicaps.

[OneTrickPony]

I thought Hikaru has a decent shot but after seeing those Dragon vs Lc0 CPU games I now have doubts.
There is a a huge difference between pawns and N handicap btw. Winning N up just requires some practice, I am convinced any 2200+ player could learn it in a few days. 2 pawns is a great handicap. I would love to see N for a pawn games (with stronger side starting the game) as well if Dragon wins wins 2 pawns down.

It will be fun, thanks for making it happen!

[JJJ]

I d like to play against Komodo Dragon at handicap chess. Can it be set to play adapted handicap to my rating like Nakamura does ?

[RubiChess]

Humans know that when they are ahead all they need to do is force to trade pieces, whereas Programs do NOT;

You are wrong. And btw. Why do you SHOUT?

Sorry it is easier for me to read, but If I am wrong please let me know a program that once it is ahead, immediately start trading pieces down, now I am whispering into your ear shhhhhhhh, let me know if I am talking too softly now ?

Have you noticed this little scroll wheel at your mouse? Now press the Ctrl-Key and scroll the wheel up. Magical things may happen: You may be able to read not only yours but every post far better.

[mwyoung]

What I've consistently observed is that humans always do better taking handicaps from top engines than similarly rated engines do. Maybe it's because they have a better understanding of simplifying when ahead, or just that they know to respect the opponent and avoid anything unclear. I have been searching for a computer opponent that can truly simulate a human GM in these handicap matches, but I haven't really found one yet. It's easy for me to run such simulations, but they don't predict well how the human will do.

So you want more brains and less calculation. Here is what I came up with to mimic a result. Lc0-CPU (J94-40) and set the nodes per second option = 4. Lc0 is searching to only 3 or 4 ply. But does much better then the A/B engines with almost now search. Is the style more GM like? But it is fun to see what it takes to win this match for the human player.

Code: Select all

DESKTOP-CORSAIR, Blitz 5.0min+1.0sec  0

                                         1234
1   Lc0 v0.26.3 - CPU               +89   1½½½   2.5/4
2   Dragon by Komodo Chess 64-bit   -89  0½½½    1.5/4

[pgn][Event "DESKTOP-CORSAIR, Blitz 5.0min+1.0sec"]
[Site "DESKTOP-CORSAIR"]
[Date "2020.11.17"]
[Round "1"]
[White "Dragon by Komodo Chess 64-bit"]
[Black "Lc0 v0.26.3 - CPU"]
[Result "0-1"]
[Annotator "-2.82;-3.08"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/P1PPP1PP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "200"]
[TimeControl "300+1"]

{AMD Ryzen Threadripper 2950X 16-Core Processor 3493 MHz W=25.4 plies; 24,
292kN/s; 3,302,788 TBAs B=3.0 plies; 0kN/s; 1 TBAs} 1. e3 {[%eval -282,25]
[%emt 0:00:10]} g6 {[%eval -308,2] [%emt 0:00:07]} 2. Nf3 {[%eval -303,26]
[%emt 0:00:14]} Bg7 {[%eval -338,3] [%emt 0:00:07]} 3. d4 {[%eval -308,26]
[%emt 0:00:08]} c5 {[%eval -368,3] [%emt 0:00:07] (Nf6)} 4. Nc3 {[%eval -298,
24] [%emt 0:00:04]} Nf6 {[%eval -347,3] [%emt 0:00:07] (Nc6)} 5. Rb1 {[%eval
-316,26] [%emt 0:00:18]} O-O {[%eval -329,3] [%emt 0:00:07]} 6. Bd3 {[%eval
-312,25] [%emt 0:00:07]} d5 {[%eval -308,3] [%emt 0:00:07] (b6)} 7. O-O {
[%eval -318,25] [%emt 0:00:12]} c4 {[%eval -305,4] [%emt 0:00:07] (b6)} 8. Be2
{[%eval -278,23] [%emt 0:00:05]} Nc6 {[%eval -348,3] [%emt 0:00:07]} 9. a4 {
[%eval -309,25] [%emt 0:00:10] (Ne5)} Qc7 {[%eval -400,3] [%emt 0:00:07] (Rb8)}
10. Qe1 {[%eval -300,25] [%emt 0:00:17]} Bf5 {[%eval -483,3] [%emt 0:00:07]}
11. Bd1 {[%eval -303,25] [%emt 0:00:04]} Rad8 {[%eval -449,3] [%emt 0:00:07]
(a6)} 12. Nb5 {[%eval -309,24] [%emt 0:00:15] (h3)} Qc8 {[%eval -529,3] [%emt
0:00:07] (Qd7)} 13. h3 {[%eval -316,23] [%emt 0:00:03] (Nc3)} Ne4 {[%eval -486,
3] [%emt 0:00:07]} 14. Nh4 {[%eval -311,23] [%emt 0:00:03] (Nd2)} Be6 {[%eval
-575,3] [%emt 0:00:07]} 15. Nc3 {[%eval -322,27] [%emt 0:00:14] (Nf3)} f5 {
[%eval -579,3] [%emt 0:00:07] (b6)} 16. Nf3 {[%eval -320,24] [%emt 0:00:03]} b6
{[%eval -528,3] [%emt 0:00:07] (Qc7)} 17. Bb2 {[%eval -327,25] [%emt 0:00:22]
(Ne2)} Qc7 {[%eval -583,2] [%emt 0:00:07]} 18. Ne2 {[%eval -329,23] [%emt 0:00:
03]} Bf7 {[%eval -652,2] [%emt 0:00:07]} 19. Ba3 {[%eval -343,26] [%emt 0:00:
29] (c3)} Rfe8 {[%eval -583,3] [%emt 0:00:07]} 20. c3 {[%eval -338,25] [%emt 0:
00:05]} e5 {[%eval -559,3] [%emt 0:00:07]} 21. Bc1 {[%eval -350,23] [%emt 0:00:
04] (Bc2)} h6 {[%eval -631,3] [%emt 0:00:07]} 22. Bc2 {[%eval -346,25] [%emt 0:
00:07]} a6 {[%eval -536,3] [%emt 0:00:07] (exd4)} 23. Bd2 {[%eval -332,23]
[%emt 0:00:04] (Ba3)} Rb8 {[%eval -817,2] [%emt 0:00:07]} 24. Qd1 {[%eval -337,
24] [%emt 0:00:05] (Bc1)} Nxd2 {[%eval -769,3] [%emt 0:00:07] (exd4)} 25. Qxd2
{[%eval -381,22] [%emt 0:00:03]} e4 {[%eval -888,4] [%emt 0:00:07]} 26. Nh4 {
[%eval -405,24] [%emt 0:00:09]} b5 {[%eval -795,3] [%emt 0:00:07]} 27. axb5 {
[%eval -401,25] [%emt 0:00:04] (Qe1)} axb5 {[%eval -939,4] [%emt 0:00:07]} 28.
Bd1 {[%eval -413,26] [%emt 0:00:06] (Qe1)} Rf8 {[%eval -948,3] [%emt 0:00:07]}
29. Nf4 {[%eval -444,28] [%emt 0:00:14] (Qe1)} Ne7 {[%eval -1461,3] [%emt 0:00:
07]} 30. Ne2 {[%eval -451,26] [%emt 0:00:02] (g4)} Be8 {[%eval -1069,3] [%emt
0:00:07] (Qd6)} 31. g3 {[%eval -396,22] [%emt 0:00:02]} g5 {[%eval -995,3]
[%emt 0:00:07] (Nc6)} 32. Ng2 {[%eval -406,23] [%emt 0:00:03]} Bh5 {[%eval
-998,3] [%emt 0:00:07] (Qd6)} 33. Kh2 {[%eval -414,24] [%emt 0:00:04] (Nef4)}
Qd6 {[%eval -980,3] [%emt 0:00:07] (Bf3)} 34. Nc1 {[%eval -391,22] [%emt 0:00:
02] (Ng1)} Be8 {[%eval -1035,3] [%emt 0:00:07] (Bg6)} 35. Na2 {[%eval -404,23]
[%emt 0:00:05]} Nc6 {[%eval -1130,3] [%emt 0:00:07]} 36. Qe1 {[%eval -413,23]
[%emt 0:00:04] (Nb4)} Rf6 {[%eval -1168,2] [%emt 0:00:07] (Ra8)} 37. Rf2 {
[%eval -396,20] [%emt 0:00:02]} Bf8 {[%eval -1163,3] [%emt 0:00:06]} 38. Rfb2 {
[%eval -419,21] [%emt 0:00:02]} Ra8 {[%eval -1258,3] [%emt 0:00:07] (Qe6)} 39.
Nc1 {[%eval -401,22] [%emt 0:00:03]} Ne7 {[%eval -1201,3] [%emt 0:00:06]} 40.
Rf2 {[%eval -435,25] [%emt 0:00:14] (Ra2)} Qc7 {[%eval -1578,2] [%emt 0:00:06]}
41. Qf1 {[%eval -449,25] [%emt 0:00:05] (Ra2)} Ra3 {[%eval -1415,2] [%emt 0:00:
06] (Rfa6)} 42. Ne2 {[%eval -434,22] [%emt 0:00:04] (Na2)} Rfa6 {[%eval -1324,
3] [%emt 0:00:06] (Ra2)} 43. Ne1 {[%eval -451,24] [%emt 0:00:03]} Ra1 {[%eval
-1444,3] [%emt 0:00:06]} 44. Rxa1 {[%eval -487,25] [%emt 0:00:03]} Rxa1 {
[%eval -1408,4] [%emt 0:00:05]} 45. Nc2 {[%eval -494,25] [%emt 0:00:01]} Rb1 {
[%eval -1274,3] [%emt 0:00:06]} 46. Rg2 {[%eval -532,25] [%emt 0:00:06] (Na3)}
Bh5 {[%eval -1620,3] [%emt 0:00:05] (Qd6)} 47. Na3 {[%eval -545,25] [%emt 0:00:
01]} Rb2 {[%eval -1361,3] [%emt 0:00:05]} 48. Nf4 {[%eval -576,24] [%emt 0:00:
01] (Ng1)} Rxg2+ {[%eval -1915,4] [%emt 0:00:05]} 49. Nxg2 {[%eval -698,26]
[%emt 0:00:03]} Be8 {[%eval -1709,3] [%emt 0:00:05] (Bxd1)} 50. Nc2 {[%eval
-504,25] [%emt 0:00:02]} Qa5 {[%eval -1770,2] [%emt 0:00:04]} 51. Qe1 {[%eval
-527,26] [%emt 0:00:03]} Nc6 {[%eval -1925,2] [%emt 0:00:04]} 52. Kg1 {[%eval
-545,26] [%emt 0:00:03] (h4)} Bd6 {[%eval -1731,2] [%emt 0:00:04]} 53. h4 {
[%eval -566,25] [%emt 0:00:05] (g4)} Qc7 {[%eval -2020,2] [%emt 0:00:04] (Ne7)}
54. Kh2 {[%eval -574,26] [%emt 0:00:02] (Qf2)} Kg7 {[%eval -2389,2] [%emt 0:00:
03]} 55. Be2 {[%eval -617,26] [%emt 0:00:04] (Qf2)} Qb8 {[%eval -2431,2] [%emt
0:00:03] (Qa5)} 56. Qf2 {[%eval -611,24] [%emt 0:00:01]} Bd7 {[%eval -2330,3]
[%emt 0:00:03]} 57. Bd1 {[%eval -631,24] [%emt 0:00:02] (Bh5)} b4 {[%eval
-2224,2] [%emt 0:00:03] (Qc7)} 58. cxb4 {[%eval -562,25] [%emt 0:00:01] (Nxb4)}
Nxb4 {[%eval -2350,3] [%emt 0:00:02]} 59. Nxb4 {[%eval -563,24] [%emt 0:00:01]}
Qxb4 {[%eval -2459,3] [%emt 0:00:02]} 60. Qe2 {[%eval -618,24] [%emt 0:00:01]
(Qa2)} Qb8 {[%eval -2731,3] [%emt 0:00:02]} 61. Qf2 {[%eval -632,23] [%emt 0:
00:00] (Qe1)} c3 {[%eval -3315,3] [%emt 0:00:02] (Qb1)} 62. Bc2 {[%eval -674,
24] [%emt 0:00:03]} Qb2 {[%eval -2842,3] [%emt 0:00:02]} 63. Kg1 {[%eval -765,
23] [%emt 0:00:01] (Qe2)} Qc1+ {[%eval -3873,2] [%emt 0:00:02] (Kg6)} 64. Kh2 {
[%eval -815,20] [%emt 0:00:00]} Qd2 {[%eval -4612,3] [%emt 0:00:02] (Kf6)} 65.
Kg1 {[%eval -688,25] [%emt 0:00:01]} Bb5 {[%eval -3562,2] [%emt 0:00:02]
(Qxf2+)} 66. hxg5 {[%eval -900,26] [%emt 0:00:02] (Qxf5)} Qxf2+ {[%eval -3795,
3] [%emt 0:00:02]} 67. Kxf2 {[%eval -941,25] [%emt 0:00:01]} hxg5 {[%eval
-4034,3] [%emt 0:00:02]} 68. Bb3 {[%eval -1088,26] [%emt 0:00:03] (Ne1)} Kg6 {
[%eval -3727,2] [%emt 0:00:01] (Bc4)} 69. Ne1 {[%eval -949,25] [%emt 0:00:00]}
Bc4 {[%eval -4056,2] [%emt 0:00:01]} 70. Bc2 {[%eval -1089,25] [%emt 0:00:02]
(Ba4)} f4 {[%eval -4190,2] [%emt 0:00:01] (Kg7)} 71. g4 {[%eval -1185,22]
[%emt 0:00:01] (gxf4)} Kf6 {[%eval -5280,2] [%emt 0:00:01] (Kg7)} 72. Ng2 {
[%eval -1251,23] [%emt 0:00:01] (Bd1)} Bd3 {[%eval -5142,2] [%emt 0:00:01]
(Kg7)} 73. Bd1 {[%eval -25000,23] [%emt 0:00:00] (Ne1)} c2 {[%eval -6985,2]
[%emt 0:00:01]} 74. Bxc2 {[%eval -25000,31] [%emt 0:00:00]} Bxc2 {[%eval -7976,
2] [%emt 0:00:01]} 75. exf4 {[%eval -25000,33] [%emt 0:00:00] (Ke1)} gxf4 {
[%eval -9198,2] [%emt 0:00:01]} 76. Nh4 {[%eval -32737,21] [%emt 0:00:01] (Ne1)
} Kg5 {[%eval -9843,1] [%emt 0:00:01] (e3+)} 77. Nf5 {[%eval -25000,39] [%emt
0:00:00]} Bb4 {[%eval -9768,2] [%emt 0:00:01] (e3+)} 78. Ng7 {[%eval -32747,28]
[%emt 0:00:00] (Ne3)} e3+ {[%eval -10502,1] [%emt 0:00:01] (Bd3)} 79. Ke2 {
[%eval -32749,23] [%emt 0:00:00]} Kxg4 {[%eval -10005,2] [%emt 0:00:01]} 80.
Ne8 {[%eval -32751,25] [%emt 0:00:00] (Ne6)} Bd2 {[%eval -10620,1] [%emt 0:00:
01] (Be7)} 81. Nf6+ {[%eval -25000,16] [%emt 0:00:00]} Kf5 {[%eval -9621,2]
[%emt 0:00:01] (Kg5)} 82. Nxd5 {[%eval -25000,24] [%emt 0:00:00]} Be4 {[%eval
-11823,2] [%emt 0:00:01]} 83. Nxe3+ {[%eval -25000,99] [%emt 0:00:00] (Ne7+)}
Bxe3 {[%eval -32507,1] [%emt 0:00:00]} 84. d5 {[%eval -27999,0] [%emt 0:00:00]}
Bxd5 {[%eval -27999,0] [%emt 0:00:00]} 85. Kd3 {[%eval -27999,0] [%emt 0:00:00]
} f3 {[%eval -27999,1] [%emt 0:00:00]} 86. Kxe3 {[%eval -27996,1] [%emt 0:00:
00]} Ke5 {[%eval -27997,0] [%emt 0:00:00]} 87. Kf2 {[%eval -27997,0] [%emt 0:
00:00]} Kf4 {[%eval -27998,1] [%emt 0:00:00]} 88. Ke1 {[%eval -27998,0] [%emt
0:00:00]} Kg3 {[%eval -27999,1] [%emt 0:00:00]} 89. Kf1 {[%eval -27999,0]
[%emt 0:00:00]} f2 {[%eval -27998,1] [%emt 0:00:00]} 90. Ke2 {[%eval -27998,1]
[%emt 0:00:00]} Bc4+ {[%eval -27999,0] [%emt 0:00:00]} 91. Kd1 {[%eval -27999,
0] [%emt 0:00:00]} f1=Q+ {[%eval -27997,1] [%emt 0:00:00]} 92. Kc2 {[%eval
-27997,0] [%emt 0:00:00]} Qa1 {[%eval -27998,0] [%emt 0:00:00]} 93. Kd2 {
[%eval -27998,1] [%emt 0:00:00]} Bd3 {[%eval -27999,1] [%emt 0:00:00]} 94. Kxd3
{[%eval -27993,1] [%emt 0:00:00]} Qa4 {[%eval -27994,1] [%emt 0:00:00]} 95. Kc3
{[%eval -27994,1] [%emt 0:00:00]} Kf3 {[%eval -27995,0] [%emt 0:00:00]} 96. Kb2
{[%eval -27995,1] [%emt 0:00:00]} Qb4+ {[%eval -27996,0] [%emt 0:00:00]} 97.
Kc1 {[%eval -27996,0] [%emt 0:00:00]} Ke2 {[%eval -27997,0] [%emt 0:00:00]} 98.
Kc2 {[%eval -27997,1] [%emt 0:00:00]} Ke3 {[%eval -27998,1] [%emt 0:00:00]} 99.
Kc1 {[%eval -27998,1] [%emt 0:00:00]} Kd3 {[%eval -27999,1] [%emt 0:00:00]}
100. Kd1 {[%eval -27999,1] [%emt 0:00:00]} Qd2# {[%eval -32765,0] [%emt 0:00:
00]} 0-1

[/pgn]

[pgn][Event "DESKTOP-CORSAIR, Blitz 5.0min+1.0sec"]
[Site "DESKTOP-CORSAIR"]
[Date "2020.11.17"]
[Round "2"]
[White "Dragon by Komodo Chess 64-bit"]
[Black "Lc0 v0.26.3 - CPU"]
[Result "1/2-1/2"]
[Annotator "-2.82;-2.34"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PP1PP1PP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "92"]
[TimeControl "300+1"]

{AMD Ryzen Threadripper 2950X 16-Core Processor 3493 MHz W=28.8 plies; 25,
703kN/s; 918,626 TBAs B=3.8 plies; 0kN/s} 1. Nc3 {[%eval -282,27] [%emt 0:00:
19]} d5 {[%eval -234,3] [%emt 0:00:07]} 2. d4 {[%eval -281,27] [%emt 0:00:07]}
Nf6 {[%eval -239,3] [%emt 0:00:07] (c6)} 3. Bf4 {[%eval -286,26] [%emt 0:00:04]
(Nf3)} c6 {[%eval -312,3] [%emt 0:00:07]} 4. Qc2 {[%eval -283,25] [%emt 0:00:
05] (Nf3)} g6 {[%eval -285,3] [%emt 0:00:07]} 5. e3 {[%eval -296,27] [%emt 0:
00:04]} Bf5 {[%eval -363,4] [%emt 0:00:07]} 6. Bd3 {[%eval -298,26] [%emt 0:00:
04]} Bxd3 {[%eval -369,4] [%emt 0:00:07] (e6)} 7. Qxd3 {[%eval -271,24] [%emt
0:00:05]} Bg7 {[%eval -416,3] [%emt 0:00:07]} 8. Nf3 {[%eval -281,25] [%emt 0:
00:05]} Nbd7 {[%eval -404,3] [%emt 0:00:07]} 9. O-O {[%eval -275,26] [%emt 0:
00:12]} O-O {[%eval -387,3] [%emt 0:00:07]} 10. h3 {[%eval -283,24] [%emt 0:00:
07]} Re8 {[%eval -387,3] [%emt 0:00:07] (Nb6)} 11. Bh2 {[%eval -288,24] [%emt
0:00:06] (Rae1)} a5 {[%eval -366,2] [%emt 0:00:07] (Nb6)} 12. Rac1 {[%eval
-265,24] [%emt 0:00:12] (Rf2)} a4 {[%eval -427,3] [%emt 0:00:07] (b5)} 13. Qc2
{[%eval -279,25] [%emt 0:00:11] (Kh1)} Qa5 {[%eval -394,3] [%emt 0:00:07] (Nb6)
} 14. a3 {[%eval -265,20] [%emt 0:00:04] (Kh1)} Nb6 {[%eval -406,2] [%emt 0:00:
07] (Qa6)} 15. Bc7 {[%eval -262,25] [%emt 0:00:03] (Ne5)} Rec8 {[%eval -354,3]
[%emt 0:00:07] (Rac8)} 16. Bxb6 {[%eval -258,26] [%emt 0:00:04]} Qxb6 {[%eval
-285,5] [%emt 0:00:06]} 17. Nxa4 {[%eval -252,27] [%emt 0:00:05]} Qc7 {[%eval
-298,4] [%emt 0:00:07] (Qa7)} 18. Nc5 {[%eval -246,25] [%emt 0:00:11]} b6 {
[%eval -349,3] [%emt 0:00:07]} 19. Nd3 {[%eval -240,25] [%emt 0:00:04]} Qd6 {
[%eval -435,3] [%emt 0:00:07] (Qb7)} 20. Nfe5 {[%eval -253,23] [%emt 0:00:03]}
c5 {[%eval -447,4] [%emt 0:00:06]} 21. Rf3 {[%eval -266,25] [%emt 0:00:04]
(Qf2)} Rc7 {[%eval -723,3] [%emt 0:00:07] (Ne4)} 22. Qe2 {[%eval -241,24]
[%emt 0:00:04] (Rcf1)} Rf8 {[%eval -373,3] [%emt 0:00:07] (Ra4)} 23. Rcf1 {
[%eval -245,25] [%emt 0:00:04]} Rcc8 {[%eval -394,3] [%emt 0:00:07] (Qd8)} 24.
Qd1 {[%eval -220,25] [%emt 0:00:24] (h4)} c4 {[%eval -542,3] [%emt 0:00:07]
(Qc7)} 25. Nb4 {[%eval -239,24] [%emt 0:00:04]} Qe6 {[%eval -251,3] [%emt 0:00:
07]} 26. Na2 {[%eval -257,26] [%emt 0:00:16] (Qa4)} Ne4 {[%eval -147,3] [%emt
0:00:07] (Nh5)} 27. Nxf7 {[%eval -158,24] [%emt 0:00:03]} Bf6 {[%eval -133,4]
[%emt 0:00:07] (h5)} 28. Nh6+ {[%eval -121,27] [%emt 0:00:06]} Kg7 {[%eval -93,
5] [%emt 0:00:06]} 29. Ng4 {[%eval -158,28] [%emt 0:00:05]} h5 {[%eval -93,4]
[%emt 0:00:07] (Bh4)} 30. Nxf6 {[%eval -115,25] [%emt 0:00:06]} exf6 {[%eval
-80,4] [%emt 0:00:06]} 31. Qc1 {[%eval -136,27] [%emt 0:00:21] (Nc3)} h4 {
[%eval -117,3] [%emt 0:00:07] (Qe7)} 32. Nc3 {[%eval -51,27] [%emt 0:00:18]}
Ng3 {[%eval -108,4] [%emt 0:00:06] (f5)} 33. Rxg3 {[%eval -42,28] [%emt 0:00:
07] (Re1)} hxg3 {[%eval -75,5] [%emt 0:00:06]} 34. Rf3 {[%eval -60,26] [%emt 0:
00:04]} Rce8 {[%eval -90,3] [%emt 0:00:07] (g5)} 35. Rxg3 {[%eval -51,28]
[%emt 0:00:04]} Qd6 {[%eval -95,3] [%emt 0:00:07] (Rh8)} 36. Ne2 {[%eval -22,
25] [%emt 0:00:04] (Rf3)} Re4 {[%eval -87,3] [%emt 0:00:06] (Kf7)} 37. Qf1 {
[%eval 0,29] [%emt 0:00:04] (Qe1)} Rfe8 {[%eval -41,3] [%emt 0:00:06] (Kh6)}
38. Qf2 {[%eval 0,32] [%emt 0:00:04]} Kf7 {[%eval -32,4] [%emt 0:00:07]} 39. a4
{[%eval 0,32] [%emt 0:00:03] (Nc3)} Qe7 {[%eval -183,4] [%emt 0:00:06] (Qe6)}
40. Nf4 {[%eval 0,36] [%emt 0:00:05]} Rxe3 {[%eval -32,5] [%emt 0:00:06]} 41.
Nxg6 {[%eval 0,39] [%emt 0:00:03] (Rxg6)} Re1+ {[%eval -41,4] [%emt 0:00:06]}
42. Kh2 {[%eval 0,42] [%emt 0:00:08]} Qd6 {[%eval -47,5] [%emt 0:00:06]} 43.
Nh8+ {[%eval 0,47] [%emt 0:00:04] (Qf5)} Kf8 {[%eval 8,4] [%emt 0:00:06]} 44.
Ng6+ {[%eval 0,47] [%emt 0:00:03]} Kf7 {[%eval -7,4] [%emt 0:00:05]} 45. Nh8+ {
[%eval 0,52] [%emt 0:00:03]} Kf8 {[%eval 8,3] [%emt 0:00:06]} 46. Ng6+ {
[%eval 0,52] [%emt 0:00:03]} Kf7 {[%eval 0,2] [%emt 0:00:05] Draw accepted}
1/2-1/2

[/pgn]

[pgn][Event "DESKTOP-CORSAIR, Blitz 5.0min+1.0sec"]
[Site "DESKTOP-CORSAIR"]
[Date "2020.11.17"]
[Round "3"]
[White "Dragon by Komodo Chess 64-bit"]
[Black "Lc0 v0.26.3 - CPU"]
[Result "1/2-1/2"]
[Annotator "-2.68;-2.70"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/P1PPPP1P/RNBQKBNR w KQkq - 0 1"]
[PlyCount "99"]
[TimeControl "300+1"]

{AMD Ryzen Threadripper 2950X 16-Core Processor 3493 MHz W=32.2 plies; 26,
516kN/s; 105,593,506 TBAs B=4.1 plies; 0kN/s; 4 TBAs} 1. c4 {[%eval -268,25]
[%emt 0:00:10]} g6 {[%eval -270,3] [%emt 0:00:07]} 2. Bb2 {[%eval -284,27]
[%emt 0:00:07] (Nc3)} Nf6 {[%eval -325,3] [%emt 0:00:06]} 3. e3 {[%eval -272,
27] [%emt 0:00:07] (h4)} Bg7 {[%eval -323,3] [%emt 0:00:07] (d6)} 4. Bg2 {
[%eval -281,26] [%emt 0:00:07]} d6 {[%eval -330,3] [%emt 0:00:07] (Nc6)} 5. Ne2
{[%eval -268,25] [%emt 0:00:08] (d4)} O-O {[%eval -334,3] [%emt 0:00:07]} 6.
O-O {[%eval -275,26] [%emt 0:00:14] (d4)} e5 {[%eval -301,3] [%emt 0:00:07]} 7.
d4 {[%eval -283,23] [%emt 0:00:05] (Nbc3)} Nc6 {[%eval -362,3] [%emt 0:00:07]
(Na6)} 8. dxe5 {[%eval -296,25] [%emt 0:00:14] (Nd2)} Nxe5 {[%eval -385,3]
[%emt 0:00:07]} 9. Nd2 {[%eval -279,24] [%emt 0:00:06]} Re8 {[%eval -387,3]
[%emt 0:00:07] (Bd7)} 10. Rb1 {[%eval -312,25] [%emt 0:00:26] (Qb3)} Rb8 {
[%eval -443,3] [%emt 0:00:07]} 11. Qc2 {[%eval -312,24] [%emt 0:00:06] (Bd4)}
b6 {[%eval -418,3] [%emt 0:00:07] (Nh5)} 12. Ng3 {[%eval -304,25] [%emt 0:00:
19]} Bb7 {[%eval -487,3] [%emt 0:00:07]} 13. e4 {[%eval -325,25] [%emt 0:00:11]
} Ned7 {[%eval -433,3] [%emt 0:00:07] (h5)} 14. f3 {[%eval -318,22] [%emt 0:00:
06] (Rbe1)} h5 {[%eval -509,3] [%emt 0:00:07] (Nc5)} 15. Ne2 {[%eval -284,23]
[%emt 0:00:03]} Nc5 {[%eval -481,3] [%emt 0:00:07]} 16. Kh1 {[%eval -316,25]
[%emt 0:00:14] (Nb3)} Nfd7 {[%eval -492,3] [%emt 0:00:07]} 17. Bxg7 {[%eval
-313,26] [%emt 0:00:05]} Kxg7 {[%eval -462,4] [%emt 0:00:06]} 18. f4 {[%eval
-332,26] [%emt 0:00:07]} Nf6 {[%eval -413,3] [%emt 0:00:07] (Qh4)} 19. Nc3 {
[%eval -328,22] [%emt 0:00:06]} Ng4 {[%eval -389,3] [%emt 0:00:07]} 20. Rbe1 {
[%eval -334,22] [%emt 0:00:04]} Qh4 {[%eval -309,4] [%emt 0:00:07] (f5)} 21.
Nf3 {[%eval -202,23] [%emt 0:00:03]} Qf6 {[%eval -280,4] [%emt 0:00:06]} 22.
Ng5 {[%eval -269,23] [%emt 0:00:06]} Qd4 {[%eval -266,3] [%emt 0:00:07] (Ne6)}
23. Nb5 {[%eval -231,24] [%emt 0:00:03]} Qd3 {[%eval -182,6] [%emt 0:00:06]}
24. Qb2+ {[%eval -213,22] [%emt 0:00:03]} f6 {[%eval -138,6] [%emt 0:00:07]}
25. Nxc7 {[%eval -259,23] [%emt 0:00:03]} Re7 {[%eval -122,5] [%emt 0:00:06]}
26. Nd5 {[%eval -321,25] [%emt 0:00:08]} Bxd5 {[%eval -108,6] [%emt 0:00:06]}
27. cxd5 {[%eval -340,25] [%emt 0:00:05]} Ne3 {[%eval -172,4] [%emt 0:00:08]}
28. f5 {[%eval -381,25] [%emt 0:00:05] (Rf3)} Qc2 {[%eval -185,4] [%emt 0:00:
07] (Re5)} 29. Qxc2 {[%eval -135,26] [%emt 0:00:04] (Ne6+)} Nxc2 {[%eval -43,6]
[%emt 0:00:06]} 30. Re2 {[%eval -151,26] [%emt 0:00:03]} Nd4 {[%eval -27,6]
[%emt 0:00:06]} 31. Rd2 {[%eval -176,26] [%emt 0:00:05]} gxf5 {[%eval -114,6]
[%emt 0:00:07]} 32. Nh3 {[%eval -149,27] [%emt 0:00:04]} Nb5 {[%eval -98,5]
[%emt 0:00:06]} 33. Rxf5 {[%eval -153,28] [%emt 0:00:08] (exf5)} Re5 {[%eval
-116,4] [%emt 0:00:07] (Nxe4)} 34. Nf4 {[%eval -93,25] [%emt 0:00:05]} Rxf5 {
[%eval -78,4] [%emt 0:00:07] (Nc3)} 35. exf5 {[%eval -23,26] [%emt 0:00:06]}
Kh6 {[%eval -69,4] [%emt 0:00:06] (Rg8)} 36. Bf1 {[%eval 0,34] [%emt 0:00:04]}
Nc3 {[%eval -25,5] [%emt 0:00:07]} 37. Rg2 {[%eval 0,34] [%emt 0:00:04]} N5e4 {
[%eval -12,4] [%emt 0:00:06] (Re8)} 38. Bd3 {[%eval 0,36] [%emt 0:00:03] (Rg6+)
} Re8 {[%eval -22,3] [%emt 0:00:07]} 39. Rg6+ {[%eval 0,40] [%emt 0:00:04]} Kh7
{[%eval -10,1] [%emt 0:00:00]} 40. Nxh5 {[%eval 0,44] [%emt 0:00:05] (Bxe4)}
Nxd5 {[%eval -6,4] [%emt 0:00:13]} 41. Bxe4 {[%eval 0,50] [%emt 0:00:05]} Rxe4
{[%eval -10,5] [%emt 0:00:06]} 42. Nxf6+ {[%eval 0,54] [%emt 0:00:05]} Nxf6 {
[%eval 0,4] [%emt 0:00:06]} 43. Rxf6 {[%eval 0,58] [%emt 0:00:05]} Ra4 {
[%eval -1,3] [%emt 0:00:07]} 44. Rxd6 {[%eval 0,57] [%emt 0:00:04]} Rxa2 {
[%eval -1,3] [%emt 0:00:06]} 45. Rd7+ {[%eval 0,53] [%emt 0:00:03] (h4)} Kh6 {
[%eval -1,3] [%emt 0:00:05]} 46. f6 {[%eval 0,58] [%emt 0:00:03] (h4)} a5 {
[%eval -3,3] [%emt 0:00:05] (Kg6)} 47. Kg1 {[%eval 0,56] [%emt 0:00:04] (Rb7)}
a4 {[%eval -6,3] [%emt 0:00:05]} 48. h4 {[%eval 0,55] [%emt 0:00:04]} Rc2 {
[%eval -2,3] [%emt 0:00:05] (Re2)} 49. h5 {[%eval 0,56] [%emt 0:00:05] (Ra7)}
a3 {[%eval -7,2] [%emt 0:00:05] (Kxh5)} 50. f7 {[%eval 0,59] [%emt 0:00:04]
Draw accepted} 1/2-1/2

[/pgn]
[pgn][Event "DESKTOP-CORSAIR, Blitz 5.0min+1.0sec"]
[Site "DESKTOP-CORSAIR"]
[Date "2020.11.17"]
[Round "4"]
[White "Dragon by Komodo Chess 64-bit"]
[Black "Lc0 v0.26.3 - CPU"]
[Result "1/2-1/2"]
[Annotator "-2.82;-2.31"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PP1PPP1P/RNBQKBNR w KQkq - 0 1"]
[PlyCount "132"]
[TimeControl "300+1"]

{AMD Ryzen Threadripper 2950X 16-Core Processor 3493 MHz W=34.6 plies; 28,
589kN/s; 102,285,792 TBAs B=4.0 plies; 0kN/s; 3 TBAs} 1. d4 {[%eval -282,26]
[%emt 0:00:07]} d5 {[%eval -231,3] [%emt 0:00:07]} 2. Nc3 {[%eval -286,26]
[%emt 0:00:12]} Nf6 {[%eval -266,3] [%emt 0:00:07] (c6)} 3. Bg5 {[%eval -278,
26] [%emt 0:00:15] (Nf3)} c6 {[%eval -299,3] [%emt 0:00:07] (g6)} 4. e3 {
[%eval -273,23] [%emt 0:00:04]} Bf5 {[%eval -353,3] [%emt 0:00:07] (g6)} 5. Bd3
{[%eval -270,24] [%emt 0:00:05]} Bxd3 {[%eval -303,4] [%emt 0:00:07]} 6. Qxd3 {
[%eval -252,25] [%emt 0:00:06]} e6 {[%eval -291,3] [%emt 0:00:07]} 7. f4 {
[%eval -277,25] [%emt 0:00:11] (0-0-0)} Nbd7 {[%eval -303,3] [%emt 0:00:07]
(Bb4)} 8. O-O-O {[%eval -277,23] [%emt 0:00:04] (Nf3)} Bb4 {[%eval -361,3]
[%emt 0:00:07]} 9. Nge2 {[%eval -295,26] [%emt 0:00:05]} Qa5 {[%eval -316,3]
[%emt 0:00:07] (Be7)} 10. a3 {[%eval -259,23] [%emt 0:00:05] (f5)} Bxc3 {
[%eval -260,3] [%emt 0:00:07]} 11. Nxc3 {[%eval -249,25] [%emt 0:00:08]} g6 {
[%eval -240,3] [%emt 0:00:07] (Qa6)} 12. Kb1 {[%eval -247,23] [%emt 0:00:06]}
O-O {[%eval -225,3] [%emt 0:00:07] (Rb8)} 13. Rhg1 {[%eval -251,22] [%emt 0:00:
10]} Kg7 {[%eval -200,3] [%emt 0:00:07]} 14. Rg2 {[%eval -269,24] [%emt 0:00:
12] (h4)} Rg8 {[%eval -212,2] [%emt 0:00:07] (Rac8)} 15. Rdg1 {[%eval -257,22]
[%emt 0:00:11]} Rae8 {[%eval -230,3] [%emt 0:00:07] (Nh5)} 16. Bh4 {[%eval
-254,23] [%emt 0:00:08] (h4)} Kh8 {[%eval -303,3] [%emt 0:00:07]} 17. Rc2 {
[%eval -260,24] [%emt 0:00:14] (Bg5)} h6 {[%eval -361,3] [%emt 0:00:07] (Qc7)}
18. Rgc1 {[%eval -253,22] [%emt 0:00:09] (Ka2)} Kh7 {[%eval -408,3] [%emt 0:00:
07] (Rc8)} 19. Bxf6 {[%eval -273,25] [%emt 0:00:19] (Ka2)} Nxf6 {[%eval -728,3]
[%emt 0:00:06]} 20. Nd1 {[%eval -260,27] [%emt 0:00:06]} Ne4 {[%eval -649,3]
[%emt 0:00:07]} 21. Nf2 {[%eval -268,29] [%emt 0:00:07]} Nxf2 {[%eval -660,4]
[%emt 0:00:07] (Nd6)} 22. Rxf2 {[%eval -261,28] [%emt 0:00:03]} Qd8 {[%eval
-679,3] [%emt 0:00:07]} 23. Rfc2 {[%eval -260,29] [%emt 0:00:03] (Ka2)} Qf6 {
[%eval -669,3] [%emt 0:00:07] (Qh4)} 24. Ka2 {[%eval -264,30] [%emt 0:00:06]
(Qb3)} Rc8 {[%eval -702,3] [%emt 0:00:07] (Re7)} 25. Qb3 {[%eval -273,29]
[%emt 0:00:04] (Qd2)} Rc7 {[%eval -791,3] [%emt 0:00:07]} 26. Rc3 {[%eval -286,
29] [%emt 0:00:10] (Qa4)} Rgc8 {[%eval -775,3] [%emt 0:00:07] (Qh4)} 27. Qa4 {
[%eval -288,27] [%emt 0:00:03]} Ra8 {[%eval -855,3] [%emt 0:00:07]} 28. R1c2 {
[%eval -301,27] [%emt 0:00:08] (Qa5)} Qe7 {[%eval -839,2] [%emt 0:00:07] (Kg7)}
29. Ka1 {[%eval -288,27] [%emt 0:00:05] (Rc1)} a5 {[%eval -734,2] [%emt 0:00:
07] (Kg7)} 30. Rc1 {[%eval -297,26] [%emt 0:00:04] (Rc5)} b5 {[%eval -707,3]
[%emt 0:00:07] (Qh4)} 31. Qc2 {[%eval -335,25] [%emt 0:00:02]} b4 {[%eval -757,
4] [%emt 0:00:06]} 32. Rxc6 {[%eval -400,28] [%emt 0:00:05] (Rc5)} Rxc6 {
[%eval -287,4] [%emt 0:00:07] (Rb7)} 33. Qxc6 {[%eval -303,26] [%emt 0:00:02]}
Rb8 {[%eval -417,4] [%emt 0:00:07]} 34. Qc5 {[%eval -382,28] [%emt 0:00:08]}
Qb7 {[%eval -642,3] [%emt 0:00:07] (Qh4)} 35. a4 {[%eval -232,28] [%emt 0:00:
02]} b3 {[%eval -491,4] [%emt 0:00:06]} 36. Qxa5 {[%eval -301,29] [%emt 0:00:
02]} Ra8 {[%eval -130,4] [%emt 0:00:07] (Qa8)} 37. Rc7 {[%eval -174,29] [%emt
0:00:02]} Rxa5 {[%eval -44,6] [%emt 0:00:07]} 38. Rxb7 {[%eval -154,27] [%emt
0:00:02]} Rxa4+ {[%eval -53,7] [%emt 0:00:06]} 39. Kb1 {[%eval -147,5] [%emt 0:
00:00]} g5 {[%eval -68,7] [%emt 0:00:07] (Kg7)} 40. fxg5 {[%eval 0,43] [%emt 0:
00:06]} hxg5 {[%eval -67,7] [%emt 0:00:05]} 41. Rxf7+ {[%eval 0,48] [%emt 0:00:
08]} Kg6 {[%eval -64,7] [%emt 0:00:06]} 42. Rb7 {[%eval 0,51] [%emt 0:00:08]}
Ra8 {[%eval -55,7] [%emt 0:00:06] (Kf5)} 43. Rxb3 {[%eval 0,45] [%emt 0:00:04]}
Rh8 {[%eval -49,6] [%emt 0:00:06]} 44. Rb6 {[%eval 0,48] [%emt 0:00:05] (Kc2)}
Kf5 {[%eval -57,4] [%emt 0:00:07] (Rxh2)} 45. Kc2 {[%eval 0,48] [%emt 0:00:04]}
Rxh2+ {[%eval -19,6] [%emt 0:00:06]} 46. Kd3 {[%eval 0,50] [%emt 0:00:04]} g4 {
[%eval -16,4] [%emt 0:00:05] (Rh8)} 47. Rb8 {[%eval 0,52] [%emt 0:00:04]} Kg5 {
[%eval -16,3] [%emt 0:00:05] (g3)} 48. b4 {[%eval 0,50] [%emt 0:00:04]} g3 {
[%eval -19,4] [%emt 0:00:05]} 49. b5 {[%eval 0,51] [%emt 0:00:04]} Kg4 {
[%eval -16,3] [%emt 0:00:05] (Rb2)} 50. Rg8+ {[%eval 0,50] [%emt 0:00:03] (b6)}
Kh3 {[%eval -39,4] [%emt 0:00:04]} 51. Rg6 {[%eval 0,45] [%emt 0:00:04] (b6)}
Rb2 {[%eval -60,3] [%emt 0:00:04]} 52. Rh6+ {[%eval 0,50] [%emt 0:00:02]} Kg4 {
[%eval -42,4] [%emt 0:00:04] (Kg2)} 53. Rg6+ {[%eval 0,52] [%emt 0:00:03]} Kf3
{[%eval -38,5] [%emt 0:00:04] (Kh4)} 54. Rf6+ {[%eval 0,59] [%emt 0:00:03]} Kg2
{[%eval -38,5] [%emt 0:00:03]} 55. e4 {[%eval 0,60] [%emt 0:00:03] (Rxe6)} Rb3+
{[%eval -35,3] [%emt 0:00:03] (dxe4+)} 56. Ke2 {[%eval 0,61] [%emt 0:00:02]}
dxe4 {[%eval -9,3] [%emt 0:00:03]} 57. Rxe6 {[%eval 0,56] [%emt 0:00:03]} Rxb5
{[%eval 0,2] [%emt 0:00:03] (Kh3)} 58. Rxe4 {[%eval 0,99] [%emt 0:00:00]} Kh3 {
[%eval -28000,0] [%emt 0:00:00]} 59. Re3 {[%eval -28000,0] [%emt 0:00:00]} Rb2+
{[%eval -28000,0] [%emt 0:00:00]} 60. Kf3 {[%eval -28000,1] [%emt 0:00:00]}
Rf2+ {[%eval -28000,0] [%emt 0:00:00]} 61. Ke4 {[%eval -28000,1] [%emt 0:00:00]
} Kg4 {[%eval -28000,0] [%emt 0:00:00]} 62. Re1 {[%eval -28000,1] [%emt 0:00:
00]} Rf4+ {[%eval -28000,0] [%emt 0:00:00]} 63. Ke3 {[%eval -28000,0] [%emt 0:
00:00]} Rf3+ {[%eval -28000,0] [%emt 0:00:00]} 64. Ke4 {[%eval -28000,1] [%emt
0:00:00]} Rf4+ {[%eval -28000,0] [%emt 0:00:00]} 65. Ke3 {[%eval -28000,0]
[%emt 0:00:00]} Rf3+ {[%eval -28000,0] [%emt 0:00:00]} 66. Ke4 {[%eval -28000,
1] [%emt 0:00:00]} Rf4+ {[%eval -28000,0] [%emt 0:00:00] Draw accepted} 1/2-1/2

[/pgn]

To complete the experiment you should run the crippled Lc0 against the ancient SF in standard chess to see if they are really of roughly comparable strength. If they are then this might indeed be a good way to simulate a human.

I calibrated my simulated human player better.

With Lc0-CPU and NN (J94-40) At rapid time controls. The base Elo was 2300 Elo ~. I can not go lower with this net strength.

Calibration settings Lc0 (J94-40) with Node per second option = 0.1 Elo = 2300~. Each 0.1 increased gained 25 Elo ~.

Results playing Stockfish 1.4 In a even match against a simulated Nakamura. Naka lost badly by over 200 Elo. And this is what you would expect.

Results playing Dragon with a 2 pawn odds match. Where Stockfish 1.4 lost all games. Simulated Nakamura does much better. Simulation still running.

Simulation shows a 2300 Elo player should beat Dragon at knight odds. I know your son is lower rated then 2300 and had a even match in 4 games.

When the simulation is complete. I will give the simulated results of the upcoming Dragon vs Naka odds match. And we can see if it can predict the winner.

[JohnW]

My personal feeling: human computer era ended around 2005 when SMP Rybka was released. Handicap matches are not interesting.

I would like to see non handicap games against GM's even if the engines win every game.
Note that I am not sure that they can win every game with black and maybe humans can find some strategy that give them practical chances for a draw.

I agree. To me, the only thing a handicap match accomplishes is embarrassment to the man if he still loses.